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@ 2021-12-15T08:58:19Z

<?php

$formatter = new \MessageFormatter('en_US', '{0, date, YYYY-ww}');
var_dump($formatter->format([new \DateTimeImmutable]));

$formatter = new \MessageFormatter('en_US', '{0}');
var_dump($formatter->format(['test']));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

110.87 ms | 1328 KiB | 5 Q